This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats@lists.apnic.net For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 20:00 +10GMT Fri 18 Jan, 2002 Analysis Summary ---------------- BGP routing table entries examined: 108261 Prefixes after maximum aggregation: 72190 Unique aggregates announced to Internet: 52166 Total ASes present in the Internet Routing Table: 12391 Origin-only ASes present in the Internet Routing Table: 10752 Origin ASes announcing only one prefix: 4679 Transit ASes present in the Internet Routing Table: 1639 Transit-only ASes present in the Internet Routing Table: 56 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 16 Illegal AS announcements present in the Routing Table: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 16 Number of addresses announced to Internet: 1178011528 Equivalent to 70 /8s, 55 /16s and 7 /24s Percentage of available address space announced: 31.8 Percentage of allocated address space announced: 60.1 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 72395 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 17281 Total APNIC prefixes after maximum aggregation: 10639 Prefixes being announced from the APNIC address blocks: 15741 Unique aggregates announced from the APNIC address blocks: 9781 APNIC Region origin ASes present in the Internet Routing Table: 1431 APNIC Region origin ASes announcing only one prefix: 470 APNIC Region transit ASes present in the Internet Routing Table: 248 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 78623808 Equivalent to 4 /8s, 175 /16s and 180 /24s Percentage of available APNIC address space announced: 58.1 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73140 Total ARIN prefixes after maximum aggregation: 47605 Prefixes being announced from the ARIN address blocks: 51855 Unique aggregates announced from the ARIN address blocks: 17055 ARIN Region origin ASes present in the Internet Routing Table: 7341 ARIN Region origin ASes announcing only one prefix: 2282 ARIN Region transit ASes present in the Internet Routing Table: 742 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 183883716 Equivalent to 10 /8s, 245 /16s and 215 /24s Percentage of available ARIN address space announced: 68.5 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17839 Total RIPE prefixes after maximum aggregation: 13946 Prefixes being announced from the RIPE address blocks: 14571 Unique aggregates announced from the RIPE address blocks: 9728 RIPE Region origin ASes present in the Internet Routing Table: 3563 RIPE Region origin ASes announcing only one prefix: 1927 RIPE Region transit ASes present in the Internet Routing Table: 641 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 106005504 Equivalent to 6 /8s, 81 /16s and 132 /24s Percentage of available RIPE address space announced: 70.2 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503, 24576 - 25599 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1337 1243 982 Telstra Pty Ltd 4538 448 1098 14 China Education and Research 703 402 341 306 UUNET Technologies, Inc. 2764 393 377 369 connect.com.au pty ltd 2907 392 1905 362 SINET Japan 7474 315 286 206 Optus Communications Pty Ltd 4755 302 114 95 Videsh Sanchar Nigam Ltd. Aut 4134 268 1858 100 Data Communications Bureau 4766 190 1391 152 Korea Internet Exchange for " 17557 183 14 84 Pakistan Telecom 9443 160 44 59 Primus Telecommunications 7539 151 138 150 TANet2, sponsored by NSC, TAI 4740 147 34 121 OzEmail ISP 1659 144 924 34 Taiwan Academic Network (TANe 9583 144 32 5 Satyam Infoway Ltd., 9768 144 385 88 Korea Telecom 7657 124 21 84 The Internet Group Limited 17676 121 1920 7 XTAGE CORPORATION 4713 115 894 102 NTT Communications Corporatio 4780 114 186 40 Digital United Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1091 2617 859 UUNET Technologies, Inc. 3301 400 924 351 TeliaNet Sweden 1257 255 489 249 SWIPnet Swedish IP Network 3215 234 562 152 France Telecom / &Equant 680 233 2149 231 DFN-IP service G-WiN 5515 219 705 176 Sonera Finland Autonomous Sys 3320 192 1961 170 Deutsche Telekom AG 786 182 1874 182 The JANET IP Service 719 164 289 118 LANLINK autonomous system 5400 155 62 86 Concert European Core Network 8708 150 20 140 Romania Data Systems S.A. 2856 135 775 124 BTnet UK Regional network 3303 125 575 124 Swisscom Ltd 3269 115 663 70 TELECOM ITALIA 12302 114 7 35 MobiFon S.A. 8297 113 37 62 Teleglobe Autonomous System i 517 104 227 102 KPNQwest Germany GmbH 1290 96 412 71 PSINet UK Ltd. 5549 96 78 59 Nextra Deutschland GmbH + Co. 1267 92 1471 42 Infostrada S.p.A. ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2124 8806 1533 UUNET Technologies, Inc. 7018 1715 7563 971 AT&T 1 854 8312 620 BBN Planet 3908 782 1656 462 Supernet, Inc. 1239 776 3156 603 Sprint 3967 680 369 271 Exodus Communication 7046 635 836 426 UUNET Technologies, Inc. 4323 617 412 216 Time Warner Communications, I 852 583 978 380 Telus Advanced Communications 690 539 77 318 Merit Network 209 513 1875 293 Qwest 705 492 449 308 UUNET Technologies, Inc. 2914 455 2192 424 Verio, Inc. 7132 448 502 159 Southwestern Bell Internet Se 4293 418 90 310 Cable & Wireless USA 3549 417 835 211 Global Crossing 2149 389 214 326 Performance Systems, Inc. 2386 384 354 243 AT&T Data Communications Serv 3561 369 2236 324 Cable & Wireless USA 577 354 604 222 Bell Advanced Communications Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7018 1715 744 AT&T 4538 448 434 China Education and Research 3967 680 409 Exodus Communication 4323 617 401 Time Warner Communications, I 1221 1337 355 Telstra Pty Ltd 3908 782 320 Supernet, Inc. 4151 336 320 USDA 7132 448 289 Southwestern Bell Internet Se 11371 278 271 Rhythms NetConnections 6347 322 241 SAVVIS Communications Corpora 1 854 234 BBN Planet 702 1091 232 UUNET Technologies, Inc. 690 539 221 Merit Network 209 513 220 Qwest 7046 635 209 UUNET Technologies, Inc. 4755 302 207 Videsh Sanchar Nigam Ltd. Aut 3549 417 206 Global Crossing 4355 237 206 EarthLink, Inc. 852 583 203 Telus Advanced Communications 6517 229 197 Yipes Communications, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 65001 PRIVATE 212.143.172.0/22 1680 NetVision Elronet As Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 126.0.0.0/8 7336 Compass Communications 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 400 Headquarters Standard Systems 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.235.0.0/16 6025 US DOD NIC Unregistered 191.9.200.0/24 1290 PSINet UK Ltd. 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:6 /10:7 /11:12 /12:38 /13:93 /14:230 /15:392 /16:7144 /17:1413 /18:2475 /19:7271 /20:6658 /21:4860 /22:7327 /23:9034 /24:60417 /25:219 /26:212 /27:116 /28:92 /29:65 /30:124 /31:0 /32:37 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1351 2124 UUNET Technologies, Inc. 1221 1189 1337 Telstra Pty Ltd 7018 1142 1715 AT&T 702 713 1091 UUNET Technologies, Inc. 690 535 539 Merit Network 3908 535 782 Supernet, Inc. 4323 508 617 Time Warner Communications, I 3967 488 680 Exodus Communication 7046 466 635 UUNET Technologies, Inc. 1239 448 776 Sprint 1 441 854 BBN Planet 4293 406 418 Cable & Wireless USA 852 369 583 Telus Advanced Communications 705 358 492 UUNET Technologies, Inc. 2764 348 393 connect.com.au pty ltd 209 339 513 Qwest 703 327 402 UUNET Technologies, Inc. 2386 307 384 AT&T Data Communications Serv 2149 292 389 Performance Systems, Inc. 4151 290 336 USDA Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 9:1 12:726 13:10 15:2 17:5 20:1 24:712 25:1 32:181 38:12 40:4 43:1 44:2 57:14 61:225 62:161 63:1908 64:1114 65:985 66:578 67:31 68:20 80:144 81:3 128:63 129:125 130:23 131:44 132:13 133:2 134:121 135:10 136:118 137:104 138:62 139:30 140:100 141:58 142:64 143:42 144:54 145:12 146:216 147:60 148:175 149:86 150:38 151:43 152:393 153:34 154:7 155:83 156:81 157:122 158:72 159:79 160:26 161:55 162:96 163:128 164:132 165:114 166:225 167:160 168:119 169:48 170:281 171:4 191:1 192:5402 193:2092 194:2050 195:799 196:435 198:3766 199:3255 200:2394 201:1 202:2892 203:4483 204:3309 205:2169 206:2749 207:2631 208:2804 209:2916 210:534 211:182 212:863 213:540 214:7 215:17 216:2927 217:410 218:24 End of report
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Routing Table Analysis